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svp [43]
3 years ago
9

Miller School has 2 boys for every 3 girls in the fifth grade. There are 120 students in the fifth grade. How many girls are the

re? How many boys are there?
Mathematics
1 answer:
laiz [17]3 years ago
7 0
b-boys\\g-girls\\\\\frac{b}{g}=\frac{2}{3}\to b=\frac{2}{3}g\\\\b+g=120\to\frac{2}{3}g+g=120\\\\\frac{2}{3}g+\frac{3}{3}g=120\\\\\frac{5}{3}g=120\ \ \ \ \ /\cdot\frac{3}{5}\\\\g=72\\\\b=\frac{2}{3}\cdot72=2\cdot24=48\\\\Answer:48\ boys\ and\ 72\ girls.
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Step-by-step explanation:

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Do the same with the next point on the circle, (-15, 14):

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Do the same with the last point, (33, 0):

33^2+0^2+33D+0E+F=0 which simplifies down to:

(3):33D+F=-1089

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-15D + 14E + F = -421

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-15D + 14E + F = -421

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3 years ago
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